import time
from datetime import datetime, timedelta

from flask import abort
from flask import current_app, jsonify
from flask import g
from flask import redirect
from flask import render_template
from flask import request
from flask import session
from flask import url_for

from info import constants, db
from info.models import User, News, Category
from info.modules.admin import admin_blu
from info.utils.common import user_login_data
from info.utils.image_storage import storage
from info.utils.response_code import RET


@admin_blu.route('/user_list')
def user_list():
    page = request.args.get("page", 1)
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1
    users = []
    current_page = 1
    total_page = 1
    try:
        paginate = User.query.filter(User.is_admin == False).paginate(page, constants.ADMIN_USER_PAGE_MAX_COUNT, False)
        users = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)
    user_dict_list = []
    for user in users:
        user_dict_list.append(user.to_admin_dict())
    data = {
        "users": user_dict_list,
        "total_page": total_page,
        "current_page": current_page,
    }
    return render_template('admin/user_list.html', data=data)


@admin_blu.route('/news_type', methods=['GET', 'POST'])
def news_type():
    if request.method == 'GET':
        try:
            categories = Category.query.all()
        except Exception as e:
            current_app.logger.error(e)
            return render_template('admin/news_type.html', errmsg="查询数据错误")
        category_dict_list = []
        for category in categories:
            cate_dict = category.to_dict()
            category_dict_list.append(cate_dict)
        category_dict_list.pop(0)
        data = {
            "categories": category_dict_list
        }
        return render_template('admin/news_type.html', data=data)
    cname = request.json.get("name")
    cid = request.json.get("id")

    if not cname:
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
    if cid:
        try:
            cid = int(cid)
            category = Category.query.get(cid)
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.PARAMERR, errmsg="参数错误")

        if not category:
            return jsonify(errno=RET.NODATA, errmsg="未查询到分类数据")
        category.name = cname
    else:
        category = Category()
        category.name = cname
        db.session.add(category)
    return jsonify(errno=RET.OK, errmsg="OK")


@admin_blu.route('/news_edit')
def news_edit():
    page = request.args.get("page", 1)
    keywords = request.args.get('keywords', None)
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1
    news_list = []
    current_page = 1
    total_page = 1
    filters = [News.status == 0]
    if keywords:
        filters.append(News.title.contains(keywords))
    try:
        paginate = News.query.filter(*filters).order_by(News.create_time.desc()).paginate(page, constants.ADMIN_NEWS_PAGE_MAX_COUNT, False)
        news_list = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)
    news_dict_list = []
    for news in news_list:
        news_dict_list.append(news.to_review_dict())
    context = {"total_page": total_page, "current_page": current_page, "news_list": news_dict_list}
    return render_template('admin/news_edit.html', data=context)


@admin_blu.route('/news_edit_detail', methods=['GET', 'POST'])
def news_edit_detail():
    if request.method == 'GET':
        news_id = request.args.get('news_id')
        if not news_id:
            abort(404)
        try:
            news_id = int(news_id)
        except Exception as e:
            current_app.logger.error(e)
            return render_template('admin/news_edit_detail.html', errmsg='参数错误')
        try:
            news = News.query.get(news_id)
        except Exception as e:
            current_app.logger.error(e)
            return render_template('admin/news_edit_detail.html', errmsg='数据查询失败')
        if not news:
            return render_template('admin/news_edit_detail.html', errmsg='新闻不存在')
        try:
            categories = Category.query.all()
        except Exception as e:
            current_app.logger.error(e)
            return render_template('admin/news_edit_detail.html', errmsg='数据查询失败')
        category_dict_list = []
        for category in categories:
            category = category.to_dict
            if news.category_id == category.id:
                category['is_selected'] = True
            category_dict_list.append(category)
        category_dict_list.pop(0)
        data = {
            'categories': category_dict_list,
            'news': news.to_dict()
        }
        return render_template('admin/news_edit_detail.html', data=data)
    news_id = request.form.get("news_id")
    title = request.form.get("title")
    digest = request.form.get("digest")
    content = request.form.get("content")
    index_image = request.files.get("index_image")
    category_id = request.form.get("category_id")
    if not all([title, digest, content, category_id]):
        return jsonify(errno=RET.PARAMERR, errmsg="参数有误")
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg="数据查询失败")
    if not news:
        return jsonify(errno=RET.NODATA, errmsg="未查询到新闻数据")
    if index_image:
        try:
            index_image_data = index_image.read()
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
        try:
            key = storage(index_image_data)
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.THIRDERR, errmsg="上传图片失败")
        news.index_image_url = constants.QINIU_DOMIN_PREFIX + key
    news.title = title
    news.digest = digest
    news.content = content
    news.category_id = category_id
    return jsonify(errno=RET.OK, errmsg="OK")


@admin_blu.route('/news_review')
def news_review():
    page = request.args.get("page", 1)
    keywords = request.args.get('keywords', None)
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1
    news_list = []
    current_page = 1
    total_page = 1
    filters = [News.status != 0]
    if keywords:
        filters.append(News.title.contains(keywords))
    try:
        paginate = News.query.filter(*filters).order_by(News.create_time.desc()).paginate(page, constants.ADMIN_NEWS_PAGE_MAX_COUNT, False)
        news_list = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)
    news_dict_list = []
    for news in news_list:
        news_dict_list.append(news.to_review_dict())
    context = {"total_page": total_page, "current_page": current_page, "news_list": news_dict_list}
    return render_template('admin/news_review.html', data=context)


@admin_blu.route('/news_review_action', methods=['POST'])
def news_review_action():
    news_id = request.json.get('news_id')
    action = request.json.get('action')
    if not all([news_id, action]):
        return jsonify(errno=RET.PARAMERR, errmsg='参数错误')
    if action not in ['accept', 'reject']:
        return jsonify(errno=RET.PARAMERR, errmsg='参数错误')
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg='数据查询失败')
    if not news:
        return jsonify(errno=RET.NODATA, errmsg='该新闻不存在')
    if action == 'accept':
        news.status = 0
    else:
        reason = request.json.get('reason')
        if not reason:
            return jsonify(errno=RET.PARAMERR, errmsg='请输入拒绝原因')
        news.status = -1
        news.reason = reason
    return jsonify(errno=RET.OK, errmsg='OK')


@admin_blu.route('/news_review_detail/<int:news_id>')
def news_review_detail(news_id):

    # 通过id查询新闻
    news = None
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)

    if not news:
        return render_template('admin/news_review_detail.html', data={"errmsg": "未查询到此新闻"})

    # 返回数据
    data = {"news": news.to_dict()}
    return render_template('admin/news_review_detail.html', data=data)


@admin_blu.route('/user_count')
def user_count():
    total_count = 0
    try:
        total_count = User.query.filter(User.is_admin == False).count()
    except Exception as e:
        current_app.logger.error(e)
    mon_count = 0
    t = time.localtime()
    begin_mon_date_str = '%d-%02d-01' % (t.tm_year, t.tm_mon)
    begin_mon_date = datetime.strptime(begin_mon_date_str, "%Y-%m-%d")
    try:
        mon_count = User.query.filter(User.is_admin == False, User.create_time > begin_mon_date).count()
    except Exception as e:
        current_app.logger.error(e)
    day_count = 0
    t = time.localtime()
    begin_day_date_str = '%d-%02d-%02d' % (t.tm_year, t.tm_mon, t.tm_mday)
    begin_day_date = datetime.strptime(begin_day_date_str, "%Y-%m-%d")
    try:
        day_count = User.query.filter(User.is_admin == False, User.create_time > begin_day_date).count()
    except Exception as e:
        current_app.logger.error(e)
    active_date = []
    active_count = []
    today_date_str = '%d-%02d-%02d' % (t.tm_year, t.tm_mon, t.tm_mday)
    today_date = datetime.strptime(today_date_str, "%Y-%m-%d")
    for i in range(0, 31):
        begin_date = today_date - timedelta(days=i)
        end_date = today_date - timedelta(days=(i - 1))
        count = User.query.filter(User.last_login >= begin_date, User.last_login < end_date).count()
        active_count.append(count)
        active_date.append(begin_date.strftime("%Y-%m-%d"))
    active_count.reverse()
    active_date.reverse()
    data = {
        'total_count': total_count,
        'mon_count': mon_count,
        'day_count': day_count,
        'active_count': active_count,
        'active_date': active_date
    }
    return render_template('admin/user_count.html', data=data)


@admin_blu.route('/index')
@user_login_data
def index():
    user = g.user
    return render_template('admin/index.html', user=user.to_dict())


@admin_blu.route('/login', methods=['GET', 'POST'])
def login():
    if request.method == 'GET':
        user_id = session.get('user_id', None)
        is_admin = session.get('is_admin', False)
        if user_id and is_admin:
            return redirect(url_for('admin.index'))
        return render_template('admin/login.html')
    username = request.form.get('username')
    password = request.form.get('password')
    if not all([username, password]):
        return render_template('admin/login.html', errmsg='参数错误')
    try:
        user = User.query.filter(User.mobile == username, User.is_admin == True).first()
    except Exception as e:
        current_app.logger.error(e)
        return render_template('admin/login.html', errmsg="用户信息查询失败")
    if not user:
        return render_template('admin/login.html', errmsg="未查询到用户信息")
    if not user.check_password(password):
        return render_template('admin/login.html', errmsg="用户名或者密码错误")
    session['user_id'] = user.id
    session['mobile'] = user.mobile
    session['nick_name'] = user.nick_name
    session['is_admin'] = user.is_admin
    return redirect(url_for('admin.index'))